Cheapest return ATH–LJU flights, September

AirHint found the following cheapest return flights from Athens (ATH) to Ljubljana (LJU) in September 2026 (see full year).

Return flights

15 Sep - 20 Sep Air Serbia
01 Sep - 04 Sep Air Serbia
15 Sep - 18 Sep Air Serbia
17 Sep - 20 Sep Air Serbia
20 Sep - 27 Sep Air Serbia
03 Sep - 06 Sep Air Serbia
22 Sep - 25 Sep Air Serbia
24 Sep - 27 Sep Air Serbia
08 Sep - 13 Sep Air Serbia
15 Sep - 15 Sep Air Serbia
29 Sep - 04 Oct Air Serbia
29 Sep - 02 Oct Air Serbia
28 Sep - 02 Oct Air Serbia
30 Sep - 04 Oct Air Serbia
29 Sep - 04 Oct Aegean Airlines direct
29 Sep - 02 Oct Aegean Airlines direct
17 Sep - 04 Oct Vueling Airlines
24 Sep - 04 Oct Vueling Airlines
24 Sep - 11 Oct Vueling Airlines
20 Sep - 04 Oct Vueling Airlines

Also check the deals for one-way flights from Athens to Ljubljana in September.

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